fix: initialize root fs once

[bytemain]

Types

• 🐛 Bug Fixes

Background or solution

ChangeLog

Summary by CodeRabbit

• 新功能
  • 引入了新的延迟承诺机制，以改进根文件系统的初始化处理。
  • 通过防止多次初始化，增强了文件系统设置的控制流和稳定性。

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Walkthrough

Walkthrough

此次更改引入了一种新的延迟承诺机制，用于处理根文件系统的初始化。新增变量 mountfsDeferred 用于管理异步初始化过程。修改了返回初始化文件系统的逻辑，以检查 mountfsDeferred 是否已设置，从而确保在文件系统初始化期间的后续调用会等待承诺解析。这种变化增强了控制流，防止多次初始化，并更好地处理文件系统设置的异步性。

Changes

文件路径	更改摘要
packages/sumi-core/src/server/core/filesystem.ts	新增变量 mountfsDeferred，用于管理根文件系统的异步初始化。

Sequence Diagram(s)

sequenceDiagram
    participant Client
    participant Filesystem

    Client->>Filesystem: initializeRootFileSystem()
    alt 如果 mountfsDeferred 已设置
        Filesystem-->>Client: 返回已解析的承诺
    else 如果 mountfsDeferred 未设置
        Filesystem->>Filesystem: 创建并初始化文件系统
        Filesystem-->>Client: 返回初始化的文件系统
    end

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Commits

Files that changed from the base of the PR and between b59978b and aa7a73e.

Files selected for processing (1)

• packages/sumi-core/src/server/core/filesystem.ts (1 hunks)

Additional comments not posted (4)

packages/sumi-core/src/server/core/filesystem.ts (4)

14-14: 代码没问题！

新增的变量 mountfsDeferred 用于管理根文件系统的异步初始化过程。类型注解和初始值都是正确的。

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17-17: 代码没问题！

新增的 if 条件用于检查 mountfsDeferred 是否已设置。如果已设置，函数会返回与之关联的 promise。这个改动确保了在文件系统初始化期间，对 initializeRootFileSystem 的后续调用会等待 promise 解析。

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19-21: 代码没问题！

一旦文件系统成功创建，mountfsDeferred promise 会使用初始化后的 mountfs 进行解析。这个改动确保了 initializeRootFileSystem 函数的使用者能收到完全初始化的文件系统。

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22-22: 格式没问题！

在 promise 解析后添加空行，提高了代码的可读性。

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